Minor fgen fixes #18

Job	Run time
Julia 1.10 - ubuntu-latest - x64 - pull_request	3m 39s
Julia 1.10 - windows-latest - x64 - pull_request	4m 44s
Julia 1 - windows-latest - x64 - pull_request	8m 1s
Julia 1 - ubuntu-latest - x64 - pull_request	5m 16s
	21m 40s

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